MySQL FLOOR() Function

Return the largest integer value that is less than or equal to 25.75:

SELECT FLOOR(25.75);

Definition and Usage

The FLOOR() function returns the largest integer value that is smaller than or equal to a number.

Note: Also look at the ROUND(), CEIL(), CEILING(), TRUNCATE(), and DIV functions.

FLOOR( number)

Parameter	Description
number	Required. A numeric value

Works in:	From MySQL 4.0

Return the largest integer value that is less than or equal to 25:

SELECT FLOOR(25);